Private Foundation

Pfeiffer Family Foundation

Pfeiffer Family Foundation is a Private Foundation headquartered in Aberdeen, SD. Financial data from the 2025 filing: $589K revenue, $1.3M expenses, $5.7M total assets. IRS filings disclose 35 grants awarded by this foundation, totaling roughly $1.4M.

EIN: 934772917 Aberdeen, SD Latest filing: 2025

Total Revenue$589K

Total Expenses$1.3M

Total Assets$5.7M

Grants Given35

Grant Total$1.4M

Filing Years2023–2025

Sample Grants Given

Northern State University Foundation

Aberdeen, SD · 2025

Gerrianne Pfeiffer Fund

$500,000

Inadcure Foundation Inc

Fairfield, NJ · 2025

Donation

$200,000

Aberdeen Area Veterans inc

Aberdeen, SD · 2025

Common ground compaign

$200,000

Raise The Barr

Rancho Palos Verdes, CA · 2025

Support of single-parenting students in CA & MN

$100,000

Media Ladies Conquering Cancer

Montclair, NJ · 2025

Donation

$50,000

Showing up to 5 of 35 total records — full history available with membership.

Officers & Directors

Treasurer John J Pfeiffer

Vice President Samuel R Pfeiffer

Vice President Sarah E Monahan

Secretary Steven Maxwell Pfeiffer

President Steven M Pfeiffer

Officer compensation and complete director data available with membership.

Top Grant Purposes

Gerrianne Pfeiffer Fund

$500,000 1 grant

Donation

$286,600 9 grants

Common ground compaign

$200,000 1 grant

Support of single-parenting students in CA & MN

$115,000 2 grants

Pledge

$50,000 1 grant

Financial Trends

Year	Revenue	Expenses	Assets
2025	$589K	$1.3M	$5.7M
2024	$472K	$209K	$5.9M
2023	$5.0M	—	$5.0M

Between 2023 and 2025, reported annual revenue declined from $5.0M to $589K (-88%), with total assets most recently reported at $5.7M.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in CA, FL, MN, MO, NJ, SD.

CAFLMNMONJSD

Full geographic grant map with state-by-state breakdown available with membership.

See the full picture for Pfeiffer Family Foundation

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Full Financial History Complete Grant Activity Officer Compensation Year-over-Year Charts Geographic Grant Map Data Exports